94 Ranger 3.0 Idle/IAC Problem

[BackwoodsSaint]

I have a 94 Ranger with the 3.0 V6, when I start it cold the idle will rise and fall like mad, I tried taking the IAC off and cleaning it, the next day when i started it the truck seemed to idle ok, then it dropped to where it almost died, but then it sat there and idled for awhile just really really low. It's also been going through a ton of oil lately, it only has 140k on it, anyways, any thoughts on anything else it could be and ways to test?
Thanks